Map symbol | Lithology | Unit name |
---|---|---|
Pzarqm | Metamorphic | Pelitic and quartzose schist of the Alaska Range |
ID | Data type | Description |
---|---|---|
Eagle-Talkeetna (Mount McKinley) | M-D | Eagle-Talkeetna (Mount McKinley) 19942 line km with spacing 9.60 km over parts of AK |
Mt Mc Kinley | M/R-D | Mt Mc Kinley 2116 line km with spacing 9.60 km over parts of AK |
Tract | Deposit Type | Mineralization age |
---|---|---|
AK-SC20 | Porphyry Cu, BC-Ak type | |
AK-SC24 | Plutonic porphyry Au | |
AK-SC25 | Placer Au | |
AK-SC07 | Au-Sb veins | |
AK-SC14 | Kuroko massive sulfide | |
AK-SC27 | Polymetallic vein | |
AK-SC08 | Low-sulfide Au-quartz veins |
Domain | Crust type | Region |
---|---|---|
Yukon-Tanana lower | Passive margin | Alaska |
Sample ID | Date collected | Sample type |
---|---|---|
7010391 | 1977-07-19 | Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves. |
Sample ID | Date collected | Sample type |
---|---|---|
3011081 | 1977-07-19 | Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid. |
Site name | Development | Commodities |
---|---|---|
Twenty-Two Gulch Placer | Past Producer | AU PB |
Twenty-Two Gulch | Past Producer | AU PB |
Bosart Prospect | Occurrence | AG PB ZN AU |
Unnamed Occurrence | Occurrence | PB ZN |
Site | Status | Commodities |
---|---|---|
Upper Bosart | Inactive | Ag |
Bosart | Inactive | Ag |
Bosart | Inactive | Ag |
Upper Bosart | Inactive | Ag |
Tract name | Deposit type | Geology |
---|---|---|
Yukon-Tanana Upland | porphyry copper | Kluane Arc and Tertiary Kuskokwim Mountains volcanic-plutonic belt (continuation of Canadian Cordilleran continental arc); north of the Denali Fault |
Pacific Margin | porphyry copper | Cretaceous through middle Tertiary volcanic and intrusive rocks representing a series of continental- and island-arc systems accreted and superimposed onto the paleomargin of northeast Asia. |